Untitled Quiz

A system in electronic devices that provides one or more DC voltages to circuits.

Different methods for supplying DC power, including battery, AC-operated, and high-frequency AC.

A power supply that converts alternating current (AC) to direct current (DC).

A circuit that converts AC to pulsating DC using only one-half of the AC cycle.

A circuit converting AC to DC using both halves of the AC cycle.

A specific type of full-wave rectifier using four diodes in a bridge configuration.

The process of smoothing out the pulsating DC output of a rectifier to produce a steadier DC voltage.

The maximum voltage that a diode in a rectifier can withstand in the reverse direction.

A system that converts alternating current (AC) to direct current (DC) for use in electronic devices.

Removes high-frequency noise and spikes from the AC input voltage.

A device that changes the voltage of AC power.

Changes AC to DC pulses. More specifically, it converts sine waves into DC pulses.

Smooths out the DC pulses from the rectifier into a steady DC voltage.

Adjusts and stabilizes the DC voltage to a consistent level.

A circuit that produces a half-wave output voltage from an AC input.

Component in a circuit that uses the electrical power.

A type of full-wave rectifier using four diodes arranged in a bridge configuration.

A process that converts AC to DC using both positive and negative half-cycles of the input AC signal.

The highest voltage value achieved in the output waveform of a rectifier circuit.

Voltage across each diode during a positive or negative half cycle in a rectifier circuit is half of the secondary voltage.

A simple estimate of the output voltage in a bridge rectifier (approximately equal to input voltage minus 0.7V).

Input voltage (Vdc) relation to secondary voltage. Vdc = 2VP / π.

The frequency of the output of a rectifier circuit is twice the input frequency.

A full waveform after rectification that is not pulsating but steady (smooth).

A small, fluctuating voltage component in a DC power supply output.

Analyzing a filter's behavior by examining voltage and current changes over time.

Values that describe how quickly an electronic circuit charges and discharges.

Commonly employed filter for smoothing pulsating DC output.

Highest voltage point in the pulsed DC signal from a rectifier.

Process where capacitor fills and empties to produce a smoother output voltage.

A desirable characteristic in a power supply, indicating minimal voltage fluctuations.

Capacitor with high capacitance value, yielding a low ripple effect.

The average DC voltage from a bridge rectifier; calculated as twice the peak input voltage divided by pi (2VP/π).

The output frequency of a rectifier is twice the input frequency (fout = 2fin).

The output voltage of a rectifier is roughly equal to the input voltage minus 1.4 volts (VPout ≈ VPin - 1.4V).

A filter circuit that uses an inductor (choke) and a capacitor to smooth out the rectified voltage, often in power supplies.

In a choke-input filter, the inductor and capacitor act as a voltage divider, suppressing high-frequency components.

The condition in an LC filter where the inductive reactance (XL) is significantly greater than the capacitive reactance (XC) allows the majority of the average rectified signal to go through to the load.

The purpose of filtering in power supplies is to smooth out the pulsating DC voltage from the rectifier into a consistent DC voltage.

Power supply filtering can be analyzed using either the time-domain (pulsations over time) or frequency-domain (filtering out high frequencies) representation.

The maximum voltage a diode in a rectifier can handle in the reverse direction.

In a half-wave rectifier with capacitor-input filter, PIV = 2VP and diode current = DC current.

In a full-wave rectifier with capacitor-input filter, PIV = VP and diode current = 0.5 DC current.

In a bridge rectifier with capacitor-input filter, PIV = VP and diode current = 0.5 DC current.

Transformers specify secondary voltage at a rated load current.

Used to protect against surge current in a power supply.

Average diode current equals the DC load current.

Average diode current is half the DC load current.